Changes in generic concepts and delimitation resulted in 80 genera (6 of which are cultivated) of Philippine Rubiaceae. Generic descriptions of all genera are coded in DELTA format (Version 2000) and translated by the directive CONFOR into INTKEY database for interactive identification and information retrieval. The descriptions incorporate mostly compiled data of Philippine Rubiaceae species and observations on over 130 characters. Recently accepted classification (subfamily, tribes, and subtribes) and significant characters defined by Robbrecht (1988, 1993) are appended to the generic descriptions. The database is available on the World Wide Web at departments/planta2/wgl/delta_ru/index.html.

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Blumea: Biodiversity, Evolution and Biogeography of Plants

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Naturalis journals & series

Alejandro, G. D., & Liede, S. (2003). The Philippine Rubiaceae genera: updated synopsis in INTKEY databases of the DELTA system. Blumea: Biodiversity, Evolution and Biogeography of Plants, 48(2), 261–277.